¿Cuál es el valor de la siguiente expresión: + − − + − + + ?​

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=